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A box of it appears after the Wall of Flesh has been defeated on a Crimson world. It is red and black in color, it is not resistant to explosions, and gives off a faint red glow.
- Added to the game.
|Blue Brick||Copper Brick||Demonite Brick||Pearlstone Brick|
|Green Brick||Silver Brick||Hellstone Brick||Gray Brick|
|Pink Brick||Gold Brick||Cobalt Brick||Red Brick|
|Iridescent Brick||Mudstone Block||Mythril Brick||Snow Brick|